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  <title>Gets an array of all supported ciphers</title>

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</div><hr /><div id="function.mcrypt-list-algorithms" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">mcrypt_list_algorithms</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.0.2, PHP 5)</p><p class="refpurpose"><span class="refname">mcrypt_list_algorithms</span> &mdash; <span class="dc-title">Gets an array of all supported ciphers</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.mcrypt-list-algorithms-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">array</span> <span class="methodname"><strong>mcrypt_list_algorithms</strong></span>
    ([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$lib_dir</code><span class="initializer"> = ini_get(&quot;mcrypt.algorithms_dir&quot;)</span></span>
  ] )</div>

  <p class="para rdfs-comment">
   Gets the list of all supported algorithms in the
   <em><code class="parameter">lib_dir</code></em> parameter.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.mcrypt-list-algorithms-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">lib_dir</code></em></dt>

     <dd>

      <p class="para">
       Specifies the directory where all algorithms are located. If not
       specified, the value of the <em>mcrypt.algorithms_dir</em>
       <var class="filename">php.ini</var> directive is used.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.mcrypt-list-algorithms-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns an array with all the supported algorithms.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.mcrypt-list-algorithms-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-822">
    <p><strong>Example #1 <span class="function"><strong>mcrypt_list_algorithms()</strong></span> Example</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />&nbsp;&nbsp;&nbsp;&nbsp;$algorithms&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mcrypt_list_algorithms</span><span style="color: #007700">(</span><span style="color: #DD0000">"/usr/local/lib/libmcrypt"</span><span style="color: #007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;foreach&nbsp;(</span><span style="color: #0000BB">$algorithms&nbsp;</span><span style="color: #007700">as&nbsp;</span><span style="color: #0000BB">$cipher</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">"</span><span style="color: #0000BB">$cipher</span><span style="color: #DD0000">&lt;br&nbsp;/&gt;\n"</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>
     The example above will produce a list with all supported
     algorithms in the &quot;<var class="filename">/usr/local/lib/libmcrypt</var>&quot; directory.
    </p></div>
   </div>
  </p>
 </div>

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